Gicv3/4 Software Overview
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Real-Time 3D Art Best Practices: Advanced VR graphics techniques Version 1.0 102073 _0100_00_en Real-Time 3D Art Best Practices: Advanced VR graphics Version 1.0 techniques Real-Time 3D Art Best Practices: Advanced VR graphics techniques Copyright © 2020 Arm Limited (or its affiliates). All rights reserved. Release Information Document History Version Date Confidentiality Change 1.0 31 Mar 2020 Non-confidential First release. Non-Confidential Proprietary Notice This document is protected by copyright and other related rights and the practice or implementation of the information contained in this document may be protected by one or more patents or pending patent applications. No part of this document may be reproduced in any form by any means without the express prior written permission of Arm. No license, express or implied, by estoppel or otherwise to any intellectual property rights is granted by this document unless specifically stated. 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Non-Confidential Page 3 of 35 102073 _0100_00_en Real-Time 3D Art Best Practices: Geometry Version 1.0 Contents 1 Overview ................................................................................................................................................................................................................... 6 2 Aliasing ....................................................................................................................................................................................................................... 7 3 Multisample Anti-Aliasing ................................................................................................................................................................................... 9 3.1. Implementing Multisample Anti-Aliasing in Unity ..............................................................................................................................................................9 4 Mipmapping ........................................................................................................................................................................................................... 11 4.1. Implementing mipmapping in Unity ......................................................................................................................................................................................... 12 5 Level of Detail ....................................................................................................................................................................................................... 13 5.1. Visual examples demonstrating how LODs can look ..................................................................................................................................................... 14 5.2. Implementing Level of Detail in Unity .................................................................................................................................................................................... 15 6 Color space ............................................................................................................................................................................................................ 16 6.1. How to choose the color space in Unity ................................................................................................................................................................................. 16 7 Texture filtering ................................................................................................................................................................................................... 17 7.1. Implementing texture filtering in Unity ................................................................................................................................................................................. 18 8 Alpha compositing ............................................................................................................................................................................................... 20 8.1. Visual example demonstrating how alpha testing and alpha coverage looks ................................................................................................. 20 8.2. Implementing alpha compositing in Unity ............................................................................................................................................................................ 21 8.2.1 Mip Maps Preserve Coverage option - Unity 2017 onwards ................................................................................................................................ 21 8.2.2 For versions of Unity before 2017 ......................................................................................................................................................................................... 22 9 Level design ........................................................................................................................................................................................................... 24 9.1. Video comparing aliasing on stairs and ramps ................................................................................................................................................................... 24 10 Banding ................................................................................................................................................................................................................. 27 10.1. Mitigation technique - dithering ............................................................................................................................................................................................. 27 10.2. Mitigation technique - tonemapping ...................................................................................................................................................................................